Dynamic Stability Control DSC 8Plus

Functional description, see BMW Service Technology:

TIS -> Document -> SI Technology -> Enter SBT Number

SBT number: 34 01 05 126

 

Diagnosis instructions

 

Remedying faults and/or deleting the fault code memory

If problems occur on deleting the fault code memory following a repair, use the following procedure:

  1. Remedy fault with ignition off
  2. Ignition on; delete fault code memory
  3. Switch off ignition: wait 5 - 10 seconds, switch ignition on again.
  4. Delete fault code memory again

Important:

In some cases, indicator and warning lamps for certain faults only go out after a short test drive.

 

Sequence for replacement of DSC unit or DSC control unit

After replacement of the DSC unit or of the DSC control unit, the control unit codes itself. In this operation, the vehicle identification number is also stored. This means that calibration of the steering-angle sensor with DSC 8/DSC 8Plus is not required. For every startup (ignition on), the DSC compares the stored vehicle identification number with the current vehicle identification number. DSC codes itself according to the type of vehicle if the vehicle identification numbers do not match. This opportunity is used to reset the learned adjustment values of the sensors to the base setting (exception: longitudinal acceleration sensor).

The following work is to be carried out:

  1. Coding DSC
    (RPA data is coded; E90 all wheel drive: SZL data is coded)
  2. Venting routine for DSC unit
  3. Check for swapped brake lines
  4. Initialise Run Flat Indicator (see Owner's Handbook)

Replacement of DSC sensor

After replacement of the DSC sensor, the service function ”Calibration DSC sensor” must be run. The longitudinal acceleration sensor is calibrated in the DSC sensor.

 

Replacement of steering-angle sensor

The steering-angle sensor forms a unit with the steering column switching centre. It cannot be replaced alone. The service function ”Calibration steering-angle sensor” or in the case of vehicles with active steering the service function ”Commissioning/Adjustment active steering” must be run after the following work:

General notes on DSC 8Plus

The all-wheel drive system xDrive is fitted in the E60 all wheel drive model (known from E53 and E83). The system is based on a development of the DSC 8, the Dynamic Stability Control DSC 8Plus: